Bottle-closure



C. HAMMER.

BOTTLE CLOSURE.

APPLICATION FILED on. 19, 1918.

1,345,363. Patented J ly 6, 192

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UNITED STATES PATENT OFFICE.

CHARLES HAMMER, OF QUEENS, YORK, ASSIGN'OR T0 AMERICAN METAL CAP COMPANY, OF BROOKLYN, NEW YORK, A CORPORA'I'IPN OF NEW YORK.

Y BOTTLE-CLOSURE.

To all whom it may concern.-

Be it known that I, CHARLES HAMMER, a citizen of the United States, residin Queens, in the county of Queens and tate of New York, have invented certain new and useful Improvements in Bottle-Closures, of which the following is a specification.

This invention has reference to the construction of articles of a cup-shaped'form, particularly those used for the closures of bottles and similar containers. i

The object of the present invention is to provide in such a construction, an improved form ,of the side joint and the bottom edge at the open end, whereby the meeting edges of the blank strip from which the body of' the closure is formed, will be interlocked to conceal the raw edge, and the same condition applies to the lower edge, so that no raw edge is exposed, and a smooth finish is provided on the bottom of the closure.

In the accompanying drawing showing one embodiment of my invention, Figure 1 shows the blank for the body or cylindrical member. Fig. 2 shows the blank in edge view with the end portions bent over pre vious to engagement. Fig. 3 is a side view 5 I of the blank as shown in Fig. 2. Fig. 4 is a side elevation of the body member bent to a i cylindrical form with the bent end portions engaged. Fig. 5 is a sectional view of the same, showing the interior. Fig. 6 is a vertical section of the finished closure; Fig. 7 shows enlarged a cross section of the interlocked-joint at an intermediate portion of the closure.

As shown the blank comprises a strip 8 of thin sheet metal having at one end a projecting tongue 9, with notched corner portions at 10 and 11, the latter extending a greater distance inward from the end of the tongue. This tongue 9 is bent back against the inner face 12 of the blank for a distance equal to the notch 10, that will bring the edge of the tongue 9 adjacent the edge 13 of the notch 11, as shown in Fig. 3.

At the other end of the blank 8 is a notch 14 at one corner of suitable depth. At the opposite corner is a short notch 15, and a short'distance back is formed a notch or opening 16, whose middle portion is on a transverse line with the inner wall 17 of the notch 14.

This end of the blank is first bent back on the inner face 12, along the line 18 at the Specification of Letters Patent.

than the width 0 Patented July 6, 1920.

Application filed October 19, 1918. Serial No. 258,879.

end of the notch 14, and then the end portion is bent outward toward the extremity of the blank on a, line 19 at one end of the notch 16.

It will be observed that between this notch 16, and. the corner notch 15 is a projecting portion or'tongue 20. At the extreme end of the blank it is again bent on a line 21 at the outer edge of the tongue 20. Thereby is formed a kind of channel, as indicated in Figs. 2 and 7. Into this channel is inserted the bent edge or tongue 9 at the other end of the blank, by bending the blank to a cylindrical form, and these parts are pressed together as indicated in Fig. 7. It will be seen from Figs. 4 and 5 that as thus formed the tongue 20 will project downwardly beyond the lapping fjoint, that is of less width the main portion of the blank. At the upper portion of the blank a slight angular opening 21 is formed. This marginal portion beyond the interlocking joint is caused to engage the margin of a disk 22 forming a top for the closure. At the other end of the closure the margin is bent outwardly or rolled to form a bead 23, that includes the portion beyond the interlocking joint. The tongue portion 20 is also bent outwardly or rolled and will be in substantial alinement or register with the other rolled or beaded portion as shown in Fig. 6.

This will make a smooth and even bottom beyond the joint.

This structure forms a very strong and tight interlocking joint for the body, at the same time avoids a'bulge or enlargement where the lower edge is formed into a bead.

What I claim is:

1. A bottle closure comprising a body formed of a metal strip bent in the form of a cylinder with theends secured together, such securing means comprising one end of the strip being bent back inwardly to form a channel, the other end being first doubled back flat on itself on the inside, with the end portion bent forward to form a channel that has the edge bent inward a short distance, the said other bent edge being inserted in said channel portion to have its bent edge engaged in the said bent edge and all said bent portions being flat- I formed of a metal strip bent in the form of a c linder with the ends secured together,

suc securing means comprising one end of the strip being bent back inwardly to form a channel, the other end being first doubled back flat on itself on the inside, with the end portion bent forward to form a channel that has the edge bent inward a short distance, the said other bent edge being inserted in' said channel portion to have its bent ed e engaged in the saidbent edge and allfsaid ent portions being flattened together to interlock with the edges concealed in the joint, said body having the top and bottom margins extended beyond the said 'oint, a disk closing one end of the bod t at has its mar ins interlocked with sai extension of the ody, the open end of the closure having the rojecting margin bent back outwardly to orm a bead, the said strip having an extension at the joint that is bent outwardly to form a part of said bead at the open end to conceal the raw edges and that constitutes an extension of the inner portion of the interlocking joint.

3. A bottle closure comprising a body formed of a metal strip bent in the form .of a cylinder with the ends secured together, such securing means comprisin the end portion of the strip being bent ack and interlocked to conceal the edgesin the joint, said body having the top and bottom margins extended beyond the said joint, a disk closing one end of the body that has its mar ins interlocked with said extension of the dy, the open end of the closure having the projecting. margin bent back outwardly to form a bead, the said strip having an extension at the joint that is bent outwardly to form a part of said bead at the open end to conceal the raw edges, and that constitutes an extension of the inner portion of the interlocking joint,

, 4. A bottle closure comprising a body formed ofa metal strip bent in the form of a cylinder with the ends secured together, such securing means'comprisin the end portion of thestrip being bent iack and interlocked to conceal the edges in the joint, said body having the top and bottom margins extended beyond the said joint, a disk closing one end of the bod that has its margins interlocked with sai extension of the body, the open end of therclosure having the projecting margin bent back outwardly to form a bead, the said strip having an extension at the joint that is bent outwardly to form a part of said bead at the open end to conceal the raw edges.

Signed at New York city, N; Y., on Oct. 17th,1918.7

' CHARLES-HAMMER. 

